3 years ago

Find the value of 7 then what is the value of the expression -3b2+25

Mathematics

1 answer:

Mice21 [21]3 years ago

6 0

-147 +25 = 122 i am pretty sure this is right but i might be wrong

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The area of a square is 64 square units. How many units long is each of its sides?

skelet666 [1.2K]

<h2>Area of a square = side × side</h2>

Let the side = x

${x}^{2} = 64 \\ x = \sqrt{64} \\ x = 8$

<h3>Length of each side = <u>8</u><u> </u><u>units</u></h3>

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3 0

3 years ago

Pls help me I will make you as brain plsss

juin [17]

Answer: y=-2

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3 years ago

Solve 2/3 a number plus 4 is 7

eimsori [14]

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3 years ago

What is the approximate distance between the points (-3, -4) and (-8, 1) on a coordinate grid

tatyana61 [14]

$\bf ~~~~~~~~~~~~\textit{distance between 2 points}
\\\\
\begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
% (a,b)
&&(~ -3 &,& -4~) 
% (c,d)
&&(~ -8 &,& 1~)
\end{array}\\\\\\ % distance value
d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}
\\\\\\
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\\\\\\
d=\sqrt{25+25}\implies d=\sqrt{2\cdot 25}\implies d=\sqrt{2\cdot 5^2}\implies d=5\sqrt{2}$

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3 years ago

Read 2 more answers

PLS HELP ME ASAP FOR 14? (SHOW WORK!!!!) + LOTS OF POINTS!!!

vladimir1956 [14]

30% off $ 45

<span>30% of $ 45 = (.3) (45) = $ 13.50 </span>

<span>30% off $ 45 = $ 45.00 - $ 13.50 = $ 31.50
hope this helped:)

</span>

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3 years ago